The rockery generally stands against the wall, while the fish pond should be in front of the rockery, so it looks harmonious and beautiful. Usually, the rockery fish pond is outdoors, so the fish raised cannot be tropical fish. Usually, some cold water ornamental fish, such as koi fish and goldfish, are selected, which have strong adaptability to temperature. Koi is large in size, so it consumes high oxygen, which requires the size of the pool, while goldfish does not.

1. Polluted water: Raising fish with rockery is harmful to fish, and the biggest problem is pollution. Because the rockery is soaked in water, it will lead to turbidity of water over time. However, not all rockeries are harmful. Some rockeries are made of resin, which basically will not emit some harmful substances. Stone rockeries have a serious impact on water quality.

2. Cleaning difficulty: Because the rockery is placed outside, it will become dirty after a long time. At this time, it will become very difficult to clean because of its unique shape and no certain rules. It is also very difficult to clean everything, so although it looks good at first, it will become very difficult after a long time.

3. Easy to get hurt: Part of the rockery is in water. Because it is made of Stone, some places may be sharp, and the fish will rub and even die when they approach it.